int restore_sigcontext(struct pt_regs *regs,
struct sigcontext __user *sc)
{
- int err = 0;
- int i;
+ int err;
/* Always make any pending restarted system calls return -EINTR */
current_thread_info()->restart_block.fn = do_no_restart_syscall;
*/
BUILD_BUG_ON(sizeof(struct sigcontext) != sizeof(struct pt_regs));
BUILD_BUG_ON(sizeof(struct sigcontext) % 8 != 0);
-
- for (i = 0; i < sizeof(struct pt_regs)/sizeof(long); ++i)
- err |= __get_user(regs->regs[i], &sc->gregs[i]);
+ err = __copy_from_user(regs, sc, sizeof(*regs));
/* Ensure that the PL is always set to USER_PL. */
regs->ex1 = PL_ICS_EX1(USER_PL, EX1_ICS(regs->ex1));
int setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs)
{
- int i, err = 0;
-
- for (i = 0; i < sizeof(struct pt_regs)/sizeof(long); ++i)
- err |= __put_user(regs->regs[i], &sc->gregs[i]);
-
- return err;
+ return __copy_to_user(sc, regs, sizeof(*regs));
}
/*
int i, j, k;
int found_readable_mem = 0;
- pr_err("\n");
if (!access_ok(VERIFY_READ, address, 1)) {
pr_err("Not dumping at address 0x%lx (kernel address)\n",
(unsigned long)address);
(unsigned long)address);
found_readable_mem = 1;
}
- j = sprintf(line, REGFMT":", (unsigned long)addr);
+ j = sprintf(line, REGFMT ":", (unsigned long)addr);
for (k = 0; k < bytes_per_line; ++k)
j += sprintf(&line[j], " %02x", buf[k]);
pr_err("%s\n", line);
case SIGFPE:
case SIGSEGV:
case SIGBUS:
- pr_err("User crash: signal %d,"
- " trap %ld, address 0x%lx\n",
+ pr_err("User crash: signal %d, trap %ld, address 0x%lx\n",
sig, regs->faultnum, address);
show_regs(regs);
dump_mem((void __user *)address);